Unable to create call adapter for io.reactivex.Observable
问题 I'm going to send a simple get method to my server(it is Rails app) and get the result using RxJava and Retrofit. The thing that I did is: My interface: public interface ApiCall { String SERVICE_ENDPOINT = "https://198.50.214.15"; @GET("/api/post") io.reactivex.Observable<Post> getPost(); } My model is this: public class Post { @SerializedName("id") private String id; @SerializedName("body") private String body; @SerializedName("title") private String title; public String getId () { return id